Subtract 30/16 from 18/63
1st number: 18/63, 2nd number: 1 14/16
18/63 - 30/16 is -89/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 16 is 1008
Next, find the equivalent fraction of both fractional numbers with denominator 1008 - For the 1st fraction, since 63 × 16 = 1008,
18/63 = 18 × 16/63 × 16 = 288/1008 - Likewise, for the 2nd fraction, since 16 × 63 = 1008,
30/16 = 30 × 63/16 × 63 = 1890/1008 - Subtract the two like fractions:
288/1008 - 1890/1008 = 288 - 1890/1008 = -1602/1008 - After reducing the fraction, the answer is -89/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/63-30/16 18/63-60/16 18/63-30/32 54/63-30/16 18/63-90/16 18/63-30/48 90/63-30/16 18/63-30/80